on pins and needles的用法和樣例：
例句
- Presently he began to fidget on his seat.
接著他就坐立不安起來。 - She was restless and even agitated.
她坐立不安，甚至心亂如麻。 - He is played out by overwork and worry.
他因過分勞累和焦慮而精疲力竭。 - The good news took away all his worry and anxiety.
好消息使他不再煩惱和焦慮。 - Profound and anxious consultations had taken place at Washington.
在華盛頓進行了深入而又令人焦灼不安的商談。
